Breathing machine

Abstract

The invention discloses a breathing machine. The breathing machine comprises an air breathing pipe, an expiring pipe and an expectoration pipe, wherein the air breathing pipe is provided with a turbofan, an air-breathing-and-expectoration two-position and four-way switching valve and a buffering tank; the expiring pipe is provided with an expiring valve, and the expiring valve is controlled in the mode that a two-position and three-way valve receives compressed gas from the buffering tank; the expectoration pipe is provided with a shutter valve, the air-breathing-and-expectoration two-position and four-way switching valve and the turbofan, wherein the expiring pipe and the expectoration pipe share the air-breathing-and-expectoration two-position and four-way switching valve and the turbofan. The breathing machine also comprises a central processing unit, and cooperatively controls all the parts of the breathing machine according to data detected by a sensor in the breathing machine. The breathing machine allows an expiring machine to be capable of serving as a module to be embedded into the breathing machine, and the breathing machine has the higher accuracy, responsiveness and safety. As the breathing machine is controlled by the same central processing unit, breathing work and expectoration work of the breathing machine reach true synchronization. The air breathing pipe and the expectoration pipe locally share a pneumatic circuit, and the structure of the breathing machine is simpler and more compact.

Description

technical field [0001] The present invention relates to the field of medical equipment, more specifically, to a ventilator. Background technique [0002] As a medical device that can replace or assist patients to complete mechanical ventilation, the ventilator has been widely used clinically. For those patients who are on a ventilator, they usually cannot expel sputum on their own. If sputum and sputum accumulate in the respiratory tract, it will directly affect the smoothness and effective ventilation of the respiratory tract, resulting in shortness of breath, decreased blood oxygen concentration, and severe respiratory failure and atelectasis. At the same time, sputum is also a breeding ground for bacteria, which may cause respiratory system infections in patients and aggravate the condition. Therefore, timely and effective sputum removal is very necessary, and regular sputum suction has become one of the core tasks of clinical care for ventilator patients. The conventi...

AI Technical Summary

Problems solved by technology

This will have a certain degree of time lag in the control, affecting the expectoration effect

[0006] 2. Safety: subject to various environmental conditions, the detection of the breathing process may bring wrong results, which is easy to cause misjudgment. The internal conditions of the breathing circuit are very complicated, such as gaseous water vapor and liquid water, and even the patient coughs up The sputum may be distributed in every corner of the breathing circuit. These factors will directly affect the accuracy of the detection results of the pressure or flow sensor, or even wrong results.

causing a safety hazard

[0007] 3. Two fans are used, the pipeline connection is complicated, the space occupied is large, the cost is high, and there are many fault points and leakage points

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